here is a whopper of a challenge for ya!! i have never seen this done right and i think it will be a good challenge for you expert custom creators!!
Make a ancient one that uses the corruption cards or the blight cards in a new and interesting way. what i mean by that is no " goo attacks get a corruption card if you have 3 you lose" garbage, i mean one that bases around it and uses them in game. i havent an idea myself but i am working on some ideas i will be posting. maybe using blights as pusedo spawn monsters or using the corruption as an alternate doom track? i know its hard but i also know you guys are good!! Let the challenge begin!